Beating-up line position indicator for looms



May. 14, 1935. H, @BBS 2,001,061'

BEATING-UP LINE POSITION INDICATOR FOR LOOMS Filed May 8, 1934 1 INvENToR 49- A UarrolH.Gi1zb.

YPaienir'icl 'May 14, 1935 f' I` i SEATING-nerim Po'sr"r,I"0.N-,-"IN1)ICA'10RV A" V FORLOOMS if y camu H. Gibbs, springend,mss.` Appiatiuii May-'8, lesgseialne. '124,553 s l y e claims.' (c1, 13s-1) ,Y fIhis invention; `relates, in fgeneralutermsto Fig-rV lfrepresents in more or lessdiagrammati- Vloom equipment butdeals more specifically with cal form portions of a loom with my device adevice, mounted on the loom4 parts, bylmeans mounted thereon;` i Y of .which the weaver or loom tenderis enabled, 1 Figs. 2, 2aand 3 arevplan Vviews showing the t; hrmlgh imanualactuation` ofA the device,rtc 4 acapplicationof the device with particular refer- 5 curately ascertain WhetherVV or` 1191; the beatingence to the relation of the indicator With the beatin operation has been properlyperformed. in line of the cloth;V

` In weaving operations,` the web or finished por- Fig. 4 isa perspective Viewl of thedev; tion of the `fabric\being.manufactured. sometimes Fig. 5 isa face view of the positioning block;

1o: advancesiasterthan thereed fullyvbeats in the. Fig. 6 is a central, longitudinal section of the 1Q weft `oriiller (threads. vIf this advance occurs Swinging arm; f

suddenly, due to c'auseswhichwill be latergiven Fig. 7 isV a section on line 1-1Fig. 6;

consideration, one'or more picks` of the. filler '.Fg. 8 s a section in plan view. `taken Orl 1in@ will be lost and a ,run will show in thenished Fig. "75, f n

15,; cloth. `Or a diiiiculty which-is, more gradual in ,f Fig- 9 iS,- an endview of the. rotating head; 15 its development might occur, resulting ina some- Fig-1,0 is a section taken on line IU-l 0, Fig. 7; Whattoclooselywoven fabric... Fig. ,11 ,i1lustra.tes a faulty weft-beating-in `'I'heweblof cloth is wound on a'dru'mandany Condition; .A i inf-ormality `in the 'winding operation mightcause Fg. 12 is Va section on line |2,-I2, Fig. 5;

# either oneof these diiculties. ThenV thereis a Figs. 13 and 14 represent indicator elements 20 possibility that` trouble might arise in the ten? embellishediin different COIOIS; and sioningapparatuswhichmaintain's a strain on Fig. 15 .is a` plan view of the indicator bar the warpthreads. Variations' Vin thisstrain willV part `1, often cause uneven weaving, and fvariable posi- Y Similarrefelehe Ghafels` are .emDlOyed 00 tioning ofthe beating-*up line of thereed, and to identify like parts in all the different ,views of .remedy this trouble, or at least to locate it in a the drawing. y .l 'i

very simple and convenient manner I have con-- Referring to `the drawing, W` represents the ceived the present inventin`,by thel use o"f which Warp threads-,1T therweft or filler'threads,` R the these `particular `troubles'in weaving operations reed, S the shuttle, C the web of cloth, B the 303 maybeanticipated andthe remedy applied with finished clothrwound on the` drum, and .I-Ithe` less ytime consumedand effort expended than olor handvwheel usedto manually` actuate'the drum, tains witlijthe conventional method offacconriall of Vwhich are conventionalv and usual ,equipplishing these objects. l ment for looms.

`"The device by means of which I attain the ob- In *Weaving,the reed R moves forwardly and l jects set forth comprises a standard from which backwardly, and` on the vforward movement, or 35 extends a `bar overhangingjthe material being beat, forcesthe Weft-threadsT along the Warp woven andan arm` pivotally mounted to swing threads to formthe nished-web of cloth, C. from the bar, together with an indicator element At the end of each iorward beat, immediately having longitudinal yieldability, disposedat the beforewhlch onepick ofthe filler is made across 404 freeendof the arm. Italsorincludes facilities the. layof the loom, the front edge of the reed 40 for making various adjustments to bring the instands-on theline L, as shown in Fig. 2 in which dicating element `into proper relation `with the the web of.cloth is depicted `as being fully and beating-up line of the cloth and automatic means correctly beat-up by the reed.

to maintain the indicator-equipped arm,` in a po- But in? Fig. `3, theline La, which represents the v sition in which, `normally,it is out of conflict withv end Vof v.the web -in which the` ller material has 45 and removed-)from any andall moving parts of been fully` beaten'in,` has advanced faster than the loom. 1 y s the weft threads'I'a have been shuttled across -The character of4 the inventionmay' best be the lay'andfallshort of being vfully beat up by the understood by reference .to the description found reed vinto the web ofV cloth, `leaving intervening in thefollowing specication when takenin conspaces which Weavers call runs` and which re- 5o nection-with the accompanying drawing `disclossembleV and to` alLintents and purposes consti- Y ing an embodiment which, atthepresent time,A tute dropped .picks which Wouldlater appear I consider preferable to` other` possiblefforms. as' suchinthe nishedfabric unless perchance, which the invention might be carried (Jut.` y through the vigilance of the operator, `they are 6g; A"In the kdrawing-ff;A y Y f Y detected in timeuto. ccwrws.A

The conventional procedure taken by the weaver in correcting this trouble when it arises, is to first stop the loom and withdraw the iiller threads Ta.. Then by releasing the ratchet mechanism (not shown) on the winding drum, permit the usual tension which is maintained on the Warp threads W to retract or pull back the iinished and completely beat in web until the beatingeupline of the cloth registers with the forward edge of the. reed when .the latter is advanced to its extreme forward position, as shown in full lines, Fig. 1.

But in performing this operation the whole feed mechanism of the loom vmust be manually actuated in order that the reed be accurately brought to this advancedvposition. This part of the operator, and can'be 4wholly obviated by the use of my device.

In Fig. 4 of the drawing I illustrate my beating-v up-line indicator which comprises a standard I mounted on any accessibleportion 2"of a loom. On the top of the standard a horizontal arm 3 carries a yoked'portionl within the branches of which is an -adiustably'mouhted block 5.'

The block 5, as will be seen by reference to Fig. 12, has a groove 6 engaging which is a tongue I theyokedlportion ofzthe arm 3. This construction holds the block normal tothe arm at all times.

Extending through the branches 3a of the yoke is a thumb screw 8 having screw-threaded engagement withthe block 5,7andserving as means to re-position the block within the confines of the yoked portion 4. A graduated scale 9 assists in making accurate adjustments of the block, and after being made, the parts-are rigidly held together by the cap screw I I). A slottedy 'hole II permitsitransverse movement of the block over the screw I0. t A

Extending inwardly ffrom the block f and disposed above-and'spacedffromthe -w'eb of the cloth C, is a bar I2 secured in the block by a threaded endl2a.' The .opposite end ofthe bar is reduced, as at I3, and son. this reduced portion is fixed a mandrel I4 secured thereon against rotation by the key I5 and against .endwise displacement therefrom by the set screw I6.- l

A sleeve I1, having a strx'iight bore I8, is

mounted for rotation. on the vmandrel I4, thisA movement being restricted to within the limits of the vcut-away portion III .and heldthcrein by a set screw (see Fig. 10). v`

To hold the sleeve fromwithdrawal off the mandrel a pin 2l is secured inthe sleeve and.

passes into the circumferential groove' 22 in the mandrel. To maintain `the' vsleeve .in its normally disposed position, as shown in' full lines in Fig 4,. a. torsional spring 24' is provided, one end thereof being xed in the mandrel, at o., and the opposite end attached to they endv of the screw 25 projecting through the Wall of the sleeve. Y

Extending from and secured to one side of the sleeve by a threaded connection therewith at 26, is a tubular indicator arm 2l having a large bore 28, two bores29 and 30,'respective1y, of substantially the same size, and a relatively small bore 3| disposed between the last two bores mentioned.

Within the indicator arm- 21 is an indicator bar assembly shown inY plan View in Fig; 15 an in part sectional elevationv in Fig. 6. I'

On the inner end of the indicator bar is a Vthin angular lever 32, the short, offset' portion 32al being pivotally securedjeccentrically, -to theend hole 39a in the indicator member.

of the mandrel I4 by a screw 33. The opposite end of the member 32 is slidably disposed in the scarf 34 cut in the rod 35, and secured therein by a pin 36 which operates in the slotted hole 32h.

Extending forwardly from the portion 35 is a smaller diameter rod 3'I the outer end of which has screw-threaded engagement with the stubrod 38, which latter carries the V-shape indicator 39. The indicator is secured for end-wise adjustment in thel scarf 38a in the'stub-rod 38, by means of screws 40 operating in the slotted A key-pin 4I travelling in a key-way 42 in the end of the indicator arm 21 maintains parallelism of the flat indicator with the bar I2.

A compressible spring 43, disposed in the bore thrusts on the shoulder 30a of the bore, and

-onfthe inner end of the stub-rod 38, normally holding the shouldered portion of the rod against the shoulder 29a of the bore 29.

v The torsional spring 2l tends to swing the indicator arm to, and hold it yieldingly in, the position marked "X" in Fig. 4; and as the pivot screw 33 is oli the axial or'swinging point of the arm, the movement of the latter above the horizontal will cause Vthe indicator bar parts to Arecede a short distance int-o the tubular arm 21, the spring 43 compressing as the arm moves upwardly. The same action takes place when the arm is swung below the horizontal, but the movement inthis case is not so pronounced, as can be seen by reference to Fig. l. l

The automatic receding of the indicator rod parts is provided for the purpose of preventing interference with other working parts of the loom when the indicator is swung upwardly. The

compression spring 43 further serves to safeguard the parts should the indicator be lowered into engagement with the reed while the vloom is operating.

The bar I2 may be ltre-positioned in any one of the screw-threaded holes 44`in the block '5, for roughly locating the indicator. The ne adjustments are made as will hereinafter be explained.

As it :is'essential that frequent tests be made with the indicator to determine whether the filler material is 'being properly beat into the cloth,

I have provided an odometer 45 the shank 45a of which is secured on the reduced'portion I3 ofthe bar I 2, VThe odometer spindle 46 has a sector of a gear 4T fixed thereon, this gear meshing with the gear teeth 48 cut on the periphery of the sleeve I'I. On each downward movement of the indicator arm the odometer registers one moreiigure, and in this manner account may be upper face of the indicator blade 39, the color.

to be one which contrasts with the color of the goods being manufactured. For instance, black on white, a deep red on a pale yellow, etc., bear-v ing in mind that colors which are not too much in contrast might be more suitable than ones which were in extreme contrast. This matter may readily be ascertained by-experimentation,

the object being to provide combinations which react on the optic nerve to the best advantage.

In installing one of my devices on a loom thev latter is operated until a short piece of the 2,001,061? Y i iinishedlweb `of clothis woven and the preliminary beating-up line of the cloth accurately estab- .lished. rIfhis preliminary line coincides with the front face of 'the reed when positionedat the extreme forward end of -its beat movement. -The indicator parts must now be adjusted so-thatf when the arm is swung downwardly the end-of the indicator plate 39 with the reed. p A

1 The positioning of theparts maylinvolvefshiftvingthe bar "I2 into another of the tapped holes 44, and it may include lengthening or shorteningy'the arm by the withdrawal of the shankoi the indicator blade 39 slightly out of, or inserting it further into, the scarf 38a by relaxing the screws 40 which clampthe shank in the split end of the stub-rod 38. In any event the free end of the indicator should closely contact the reed in this preliminary adjustment operation.

But the position of the front face of the reed does not indicate the true beating-up line of the cloth, due to the fact that after withdrawal of the reed into its rearward position the cloth-slightly expands in a direction toward the reed, and it` is on this expansion line of the web of the cloth that the forward or free end of the indicator blade must register when making tests.

It is, therefore, necessary to make a iinal adjustment of the indicator element while the reed is withdrawn from the beating-up line.

This is accomplished by actuation of the thurnb screw 8, made after relaxing the cap screw l il, the Y movement being checked by the graduations 9, each of which constitutes or represents one pick of the ller material.

It might be 'well to explain, at this point, `that the expansion of the fabric, rearwardly of the preliminary beating-up line will vary with different grades of material being woven, but usually it will require two picks, and sometimes more of rearward adjustment of the indicator to compensate for the expansion movement of the cloth, toward the reed, after the withdrawal of the latter from its extreme forward position.

After this final adjustment Vis made, the indicator automatically swings upwardly into the position in which it is shown in full lines, Fig. 4, and thereafter, when a test is to be made, the loom is stopped, with the reed in its backward position. Should the indicator register with the beating-up line in any testing operation, it is proof that the Vfabric is being woven properly, but if not it indicates that something is wrong.

Should conditions appear as shown in Fig. 3, the remedy islto stop the loom, with the reed positioned as shown in dot and dash lines, and release the ratchet mechanism on the winding drum, permitting `the tensioning strain on the warp threads to draw the web back to the true beatingup line which, in this instance, is coincident with the end of the indicator blade 39, the filler threads Ta being in some cases pulled out of the web and in others left intact to be beat in by the reed, the

`weaver using his judgment as to the number of agency of the spring 24. `The operation concomes into close contactsumes but a'few seconds ci time, gives accurate indication of the characterA of the beating-up process `and `facilitates the work of correcting faults in the weaving which present-day methods donot contemplate.

' Moreover thel 'weaver can easily Vattend more looms, is enabled to produce a better grade of good's'and' takes more interest in Vhis work for the reason that it is less irksome. The practicability andeiectveness oi' my indicator wi1l, it is believed, commend itself to those interested in loom oizierations.` jf-What I claim isz- -1.` Abeating-up line' indicator forl looms comprising a standard adapted to be secured onv a stationary portion 0f the loom, a bar extending l from said standard, over the web of cloth, a sleeve mounted for restricted rotation on the end 1,

manually depressed and the manual pressure released and means to variously position said bar on said standard for the purpose of bringing the free end of said indicator arm into register with the weft-beating-up line of the cloth.

2; A beating-up-line, position indicator for looms, comprising a standard, a` bar extending from said standard over. the portion of cloth last beaten up, a mandrel on the end of said bar, a

sleeve revolubly mounted on said mandrel, a spring yieldingly holding said sleeve in a predetermined position circumferentially of and with respect to said mandrel, a tubular indicator arm secured on 'and disposed normal to said sleeve, an indicator rod in said indicator arm, and a colored indicatorplate element on the outer end of the indicator rod, said plate being of a color contrasting with that ofthe shade of goods being woven.

3. A beating-up-line indicating device for looms comprising a standard, a bar extending from said standard, a mandrel secured on said bar, a sleeve mounted for restricted rotary movement on said mandrel, a tubular'arm secured in the side of said sleeve, an indicator rod assembly in said tubular arm, one end thereof being eccentrically pivoted to said mandrel, and a colored indicator plate element on the outer end of said indicator rod assembly, said element adapted to yield longitudinally of and relative to said tubular arm.

4. A beating-up-line indicating device for looms comprising a standard, a bifurcated arm extending horizontally from said standard, a block disposed on said arm, between the branches of the bifurcated portion thereof, means to variously position said block within said bifurcated portion,` a bar secured to and extending outwardly from said block, a mandrel on the outer end of said bar, a sleeve rotatable on said mandrel and held thereon against end-wise displacement therefrom,an indicator` arm mounted on and adapted to swing with said sleeve, and an end-wise yieldable indicator element on the outer end of said indicator arm adapted, when depressed, toV register with the last pick of filler material which has'been correctly beat into the cloth being woven.

looms comprising a bar disposed over and spaced from the web of cloth being woven, a mandrel on the end of 4said bar having a reduced portion on its circumference, a torsional spring disposed in said reduced portion, one end of said spring being secured to said mandrel, a sleeve rotatable on said mandrel, the opposite end of said spring being secured in said sleeve, whereby said sleeve rotates in response to the action of said spring in one direction, a tubular indicator arm secured on and disposed normal to said sleeve, an indicator rod disposed within said tubular indicator arm and eccentrically connected at one end to said mandrel, whereby in rotating said sleeve reciprocable movement is given said rod in and relative to :said tubular indicator arm, gear teeth on said sleeve, a segmental gear engaging the teeth on said sleeve, whereby a rotary movement is given said segmental gear when said sleeve is rotated, and means associated with said segmental gear or recording alternate oscillatory movements of said tubular indicator arm.

6. A beatng-np-line indicating device for looms, having characteristics according to claim 5, and a stop pin adapted to limit the rotary movement of said sleeve when said tubular indicator arm has .automatically swung upwardly and reached a predetermined angle of inclination.

, CARROLL H. GIBBS. 

